Hi everyone,
I've been trying to (unsuccessfully) solve this issue for about two
days now so I feel I've done mandatory rtfm and I do need some help.
My general problem is: I'd like to be able to switch device that
plays audio, while the audio stream is working - without player
application knowing anything happened.
My current asoundrc can switch the card through environmental
variable, and defaults to dmix (that then has hw:1,0 slave) if no
variable is present.
What I've done so far to narrow my problem, was trying to learn how
'hooks' plugin works (by reading alsa.conf and few posts in mailing
list archive), and try to figure out how ctl interface works,
thinking I might add a custom ctl control, that might then control
the pcm.default to -somehow- switch between two different slave plugins.
I can vaguely recall seeing something similar happening with hooks plugin,
but I might be wrong.
Any information, or guidance towards more information would be
highly appreciated - thanks in advance.
If it helps, this is my current asoundrc:
pcm.!default {
@func getenv
vars [ ALSA_DEFAULT_PCM ]
default "dmix"
}
ctl.!default {
type hw
card 1
}
# Mixes everything to device hw:1,0
pcm.!dmix {
type dmix
ipc_key 1024
slave {
pcm "hw:1,0"
period_time 0
period_size 1024
buffer_size 4096
rate 48000
}
bindings {
0 0
1 1
}
}
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